I do not understand what have I miss. what code I write it print me what the question asked but still the code does not pass.
Your code so far
// User Editable Region
let cities=["London","NewYork","Mumbai"];
console.log(cities);
cities[cities.length-1]="MexicoCity";
console.log(cities);
// User Editable Region
Your browser information:
User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Challenge Information:
Learn Introductory JavaScript by Building a Pyramid Generator - Step 23